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Spatially resolved density measurements of singlet delta oxygen in a non-equilibrium atmospheric pressure plasma jet by molecular beam mass spectrometry
Plasma Sources Science and Technology ( IF 3.3 ) Pub Date : 2020-05-11 , DOI: 10.1088/1361-6595/ab7f4b
Jingkai Jiang 1 , Yolanda Aranda Gonzalvo 1, 2 , Peter J Bruggeman 1
Affiliation  

Singlet delta oxygen (O2(a1Δg)), the first electronically excited state of O2, plays an important role in many applications. In this letter, we report the first measurements of absolute densities of O2(a1Δg) in an atmospheric pressure plasma jet (APPJ) by molecular beam mass spectrometry (MBMS). The ability to measure axial and radial profiles of O2(a1Δg) impinging on a substrate in the effluent of the APPJ is a key advantage of the MBMS diagnostic method over previously reported optical methods. The measured large O2(a1Δg) densities in the APPJ effluent, up to one order of magnitude higher than the O density, underline the potential importance of O2(a1Δg) in many applications using APPJs.

中文翻译:

通过分子束质谱法对非平衡大气压等离子体射流中单线态 delta 氧的空间分辨密度测量

单线态 delta 氧 (O2(a1Δg)) 是 O2 的第一个电子激发态,在许多应用中起着重要作用。在这封信中,我们报告了通过分子束质谱法 (MBMS) 首次测量大气压等离子体射流 (APPJ) 中 O2(a1Δg) 的绝对密度。能够测量撞击在 APPJ 流出物中的基底上的 O2(a1Δg) 的轴向和径向分布是 MBMS 诊断方法相对于先前报道的光学方法的一个关键优势。在 APPJ 流出物中测得的大 O2(a1Δg) 密度比 O 密度高一个数量级,强调了 O2(a1Δg) 在使用 APPJ 的许多应用中的潜在重要性。
更新日期:2020-05-11
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